The Infoblox DNS server implementation must maintain the integrity of information during reception.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-233926	IDNS-8X-700021	SV-233926r621666_rule		Medium

Description
Information can be unintentionally or maliciously disclosed or modified during reception, including, for example, during aggregation, at protocol transformation points, and during packing/unpacking. These unauthorized disclosures or modifications compromise the confidentiality or integrity of the information. Confidentiality is not an objective of DNS, but integrity is. DNS is responsible for maintaining the integrity of DNS information while it is being received.

Description

Information can be unintentionally or maliciously disclosed or modified during reception, including, for example, during aggregation, at protocol transformation points, and during packing/unpacking. These unauthorized disclosures or modifications compromise the confidentiality or integrity of the information. Confidentiality is not an objective of DNS, but integrity is. DNS is responsible for maintaining the integrity of DNS information while it is being received.

STIG	Date
Infoblox 8.x DNS Security Technical Implementation Guide	2021-01-11

Details

Check Text ( C-37111r611298_chk )
Note: For Infoblox DNS systems on a classified network, this requirement is Not Applicable. 1. Navigate to Data Management >> DNS >> Zones. 2. For all external-facing authoritative zones and review all external authoritative zones. Note: To add "Signed" column, select an existing column >> down arrow >> Columns >> Edit Columns. Set the "Signed" check box to "Visible" and select "Apply". DNSSEC signing status will be displayed in the Zones tab. Verify that external authoritative zones are DNSSEC signed. If DNSSEC is not used for authoritative DNS this is a finding.

Check Text ( C-37111r611298_chk )

Note: For Infoblox DNS systems on a classified network, this requirement is Not Applicable.

1. Navigate to Data Management >> DNS >> Zones.
2. For all external-facing authoritative zones and review all external authoritative zones.
Note: To add "Signed" column, select an existing column >> down arrow >> Columns >> Edit Columns. Set the "Signed" check box to "Visible" and select "Apply". DNSSEC signing status will be displayed in the Zones tab. Verify that external authoritative zones are DNSSEC signed.

If DNSSEC is not used for authoritative DNS this is a finding.

Fix Text (F-37076r611299_fix)
Note: Ensure DNSSEC is configured to meet all other STIG requirements prior to signing a zone to avoid signing with an unapproved configuration. 1. Navigate to Data Management >> DNS >> Zones. 2. Select the appropriate zone using the check box. Using the "DNSSEC" drop-down menu, select "Sign Zones". 3. Follow prompts to acknowledge zone signing. 4. Perform a service restart if necessary.